If you live anywhere in the southern U.S. then you have probably had some experience with fireants. 

These tiny little ants can pack a big punch and their swarming behavior makes them that much more dangerous. 

This video by It's Okay To Be Smart dives in to the facts about these tiny terrors and their origins, as well as some crazy ideas for controlling them such as ant-decapitating phorid flies. 

The next time you are walking out in the yard and run across that well camouflaged fireant pile you will have a better idea of what they are, how they got there and what you can do about it.